"distance of separation" is correct and usable in written English.
You can use it in a variety of contexts to refer to a physical, psychological, or emotional distance between two people. For example, "The distance of separation between the two former friends was palpable."
The drops are assumed to coalesce once the film thickness becomes smaller than a critical thickness while they are regarded as separated if their distance of separation is larger than a prescribed distance.
We, also, report the best distance of separation of the laser diode from photonic crystal fiber producing the maximum coupling.
To a first approximation, the force (averaged over all orientations) is inversely proportional to the temperature and to the seventh power of the distance of separation.
When a charged molecule induces a dipole in another, the force is always attractive and is inversely proportional to the fifth power of the distance of separation.
The measures included increasing the minimum altitude at which ex-military jets can perform aerobatic manoeuvres and the minimum distance of separation between a civil display and a crowd.
Scattering can demonstrate such properties of these pairs as the potential energy of their interaction as it varies with the distance of separation, their chemical reactivity, and the probability that they will exchange internal energy on collision.
At larger distances of separation, molecules may attract or repel each other depending on the sign (plus or minus) and distribution of their electrical charge.
The nonlinear BVPs that are investigated include the cases of the single and double cantilever-type geometries under the influence of the intermolecular van der Waals force and the quantum Casimir force for appropriate distances of separation.
The distances of separation between the acceptor and donor were calculated based on the theory of fluorescence resonance energy transfer and were found to be 2.35 nm and 2.18 nm for HSA ETH and BSA ETH systems, respectively.
At small distances of separation between the rigid sphere and the wall, the role of the surface viscosity becomes quite substantial: the drag and the toque can be several times bigger than those which correspond to motion in an unbounded fluid.
On both magnetite surfaces the net effect of the cells is to lessen the attractive regime so that small repulsive forces are measurable at very short distances of separation.
